Ipswich man Oliver Campbell's case adjourned by court

Oliver Campbell was convicted in 1991 of murder by shooting and conspiracy to rob.

A confession was given by Mr Campbell who was interviewed in 14 separate police interrogations, many without a lawyer being present.

Oliver Campbell outside the Royal Courts of Justice in London (Image: Jordan Pettitt/PA Wire)

Mr Campbell suffered severe brain damage as a baby, and as such has severe learning difficulties.

He has lived in Ipswich since finishing his 11-year jail term at Hollesley Bay Prison near Woodbridge.

During the two-day hearing at the Court of Appeal, forensic psychologist Professor Gisli Hannes Gudjonsson said that Mr Campbell had scored "abnormally high" on tests for acquiescence, meaning a "tendency of the person to agree to something irrespective of content."

Oliver Campbell outside the Court of Appeals (Image: Tom Pilgrim/PA Wire)

He went on to say: "He was so vulnerable, he clearly needed an appropriate adult who was effective, and a solicitor who was cognisant to any pressure that was unfair.

"The techniques of questioning that were used carry a very high risk.

"They were dangerous."

The Crown Prosecution Service (CPS) is resisting the appeal, which was brought to the court by the Criminal Cases Review Commission.

Oliver arriving at the Court of Appeal (Image: Jordan Pettitt/PA Wire)

Mr Campbell's barrister, Michael Birnbaum KC, said on the first day of the hearing that officers may have "deliberately lied" to Mr Campbell to get confessions.

Lord Justice Holroyde, Mrs Justice Stacey and Mr Justice Bourne adjourned proceedings on February 29 in the afternoon, with the CPS to make its submissions at a future hearing.

Lord Justice Holroyde apologised to Mr Campbell but said the "important and difficult" case "must be properly addressed".

Oliver Campbell in Ipswich (Image: Newsquest)